"Do Not Track" was a good standard, but on the today's global Internet, unenforceable without serious push back against non-compliant sites from either government regulators and/or consumers. In other words, privacy theater that misled users into thinking it made them safer. It has also been suggested that DNT signals are used by some advertisers in profiling users. But removing DNT suspiciously seems like a capitulation, and will short-circuit any existing efforts to use it to protect consumer privacy. Maskawanian is right, this was inevitable once Mozilla decided to become an ad company (as was their adding the deceptively named Privacy-Preserving Ad Attribution feature earlier this year). I think it's time for people concerned about privacy to consider alternatives to Mozilla.